Advertisements
Advertisements
Question
Is it correct to say that in a histogram, the area of each rectangle is proportional to the class size of the corresponding class interval? If not, correct the statement.
Solution
As we know that in a histogram, the area of each rectangle is proportional to the corresponding frequency of its class.
Hence, the given statement is not correct.
APPEARS IN
RELATED QUESTIONS
The following table shows the interest paid by a company (in lakhs):
Year | 1995-96 | 1996-97 | 1997-98 | 1998-99 | 1999-2000 |
Interest (in lakhs of rupees | 20 | 25 | 15 | 18 | 30 |
Draw the bar graph to represent the above information.
The following data gives the production of foodgrains (in thousand tonnes) for some years:
Year | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 |
Production (in thousand tonnes |
120 | 150 | 140 | 180 | 170 | 190 |
Represent the above with the help of a bar graph.
The income and expenditure for 5 years of a family is given in the following data:
Years | 1995-96 | 1996-97 | 1997-98 | 1998-99 | 1999-2000 |
Income (Rs. inthousands) |
100 | 140 | 150 | 170 | 210 |
Expenditure (Rs. in thousands) |
80 | 130 | 145 | 160 | 190 |
Represent the above data by a gar graph.
Construct a histogram for the following data:
Monthly School fee (in Rs): |
30-60 | 60-90 | 90-120 | 120-150 | 150-180 | 180-210 | 210-240 |
No of Schools | 5 | 12 | 14 | 18 | 10 | 9 | 4 |
Draw a histogram for the daily earnings of 30 drug stores in the following table:
Daily earning (in Rs): |
450-500 | 500-550 | 550-600 | 600-650 | 650-700 |
Number of Stores: | 16 | 10 | 7 | 3 | 1 |
In a histogram, each class rectangle is constructed with base as
Construct a frequency polygon for the following distribution:
Class-intervals | 0-4 | 4 - 8 | 8 - 12 | 12 - 16 | 16 - 20 | 20 - 24 |
Frequency | 4 | 7 | 10 | 15 | 11 | 6 |
The following tables show the mode of transport used by boys and girls for going to the same school.
Bus | Bicycle | Walking | Other sources | |
Number of boys |
80 | 60 | 20 | 85 |
Number of girls |
90 | 75 | 35 | 60 |
Draw a double bar graph representing the above data.
Manoj appeared for ICSE examination 2018 and secured percentage of marks as shown in the following table:
Subject | Hindi | English | Maths | Science | Social Study |
Marks as percent | 60 | 45 | 42 | 48 | 75 |
Represent the above data by drawing a suitable bar graph.
The birth rate thousand of the following states over a certain period is given below:
States | Punjab | Haryana | U.P. | Gujarat | Rajasthan | Jammu and Kashmir |
Birth Rate (per thousand ) | 22.9 | 21.8 | 19.5 | 21.1 | 23.9 | 18.3 |
Draw a bar graph for the above data.